In brief: Sudden sweat may signal a heart attack
In brief
Researchers have found that many heart attack victims (up to a third in one study) don't experience chest pain or anything remotely like the "Hollywood heart attack" in which a person crumples to the floor, gripping his or her chest. In fact, one study reports that for many heart attack sufferers, sudden sweating is the stand-out symptom and the one most likely to take them to a doctor.
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